Paid Search Analysis for B2B: How to Audit Your Google Ads Performance in 2026
TL;DR
Paid search analysis for B2B starts with conversions. If Google Ads optimises toward form fills, every other metric in the account is measured against the wrong goal.
The 8-step audit: conversions, search terms, match types and negatives, budgets, ads and landing pages, recommendations, then reporting on cost per opportunity.
Benchmarks are context, not targets. Industrial and commercial advertisers report a median $75.19 cost per lead, but your own pipeline data matters more.
The checklist below covers the 12 checks to repeat every quarter.
Paid search analysis tells you whether your Google Ads budget is buying pipeline or just clicks. For B2B teams, the gap between the two is wide. A campaign can show a healthy click-through rate and a low cost per lead while sales rejects the leads it produces.
This guide shows how to run a paid search analysis, also called a PPC audit or Google Ads audit, built around B2B buying. It covers the 8 steps in order, the benchmarks to compare against, how paid search appears in GA4, and a checklist to repeat every quarter.
Who this is for: paid media managers and marketing leads at B2B companies with long sales cycles who run Google Ads in-house or through an agency.
What Is Paid Search Analysis?
Paid search analysis is the review of search campaign data to find where budget is wasted and where it produces results. It covers the search terms that trigger ads, how the account is structured, what the ads and landing pages say, and which conversions the campaigns are optimising toward.
A PPC audit is the same work done as a one-off, structured review, usually when performance drops, a new owner takes over or an agency pitches for the account. Ongoing PPC analysis is the monthly version. Both follow the steps below.
For B2B, the difference from an ecommerce audit is the finish line. An online store can judge Google Ads on revenue per click. A B2B company with a 12 to 36 month sales cycle judges it on qualified opportunities and pipeline, which arrive months after the click.
Google Ads Benchmarks to Compare Against in 2026
WordStream's 2026 benchmarks cover 13,474 US search campaigns from April 2025 to March 2026, reported as medians (WordStream):
Industry | CTR | CPC | Conversion rate | Cost per lead |
|---|---|---|---|---|
All industries | 6.64% | $5.42 | 8.18% | $66.69 |
Industrial and Commercial | 6.57% | $5.87 | 8.20% | $75.19 |
Business Services | 6.10% | $5.87 | 4.85% | $93.69 |
Use these as a sense check, not a target. They count every conversion an advertiser tracks, so a B2B account that only counts qualified leads will show a lower conversion rate and a higher cost per lead, and still be the healthier account.
How to Run a Paid Search Analysis: Step by Step
Run the steps in this order. Each one depends on the data the step before it confirmed.
Step 1: Set the question and the date range
Write down what the audit needs to answer: why cost per lead rose, whether to raise budget, or whether the agency is performing. Then pull at least 90 days of data, and compare it with the same period last year if the account is older than a year. Shorter windows hide seasonality and the slow conversions typical of B2B.
Step 2: Check what counts as a conversion
Open Goals and list every conversion action. Google Ads uses primary actions for bidding and reports them in the Conversions column, while secondary actions are reported in All conversions for observation only (Google Ads Help).
The common B2B fault is a primary goal set to page views, button clicks or every form submission. Smart Bidding then finds more of those, not more buyers. Make qualified leads or opportunities the primary goal, and keep micro-actions as secondary. Sending CRM stages back into Google Ads is covered step by step in Offline Conversion Tracking for B2B: How to Send CRM Pipeline Back Into Google Ads (Please upload the live URL when articles are published).
Step 3: Analyse the search terms
The search terms report shows the actual searches that triggered your ads, and which keyword matched each one (Google Ads Help). Sort by cost and read the top 100 terms. Mark each one as relevant, irrelevant or unclear.
For B2B, the irrelevant terms usually fall into four groups: job seekers ("jobs", "salary", "careers"), students and researchers ("what is", "definition", "course"), people looking for free tools, and companies far outside your ICP. Low-volume searches are hidden for privacy, so the report never shows the full picture (Google Ads Help).
Performance Max campaigns have their own search terms report, and you can block irrelevant Search and Shopping terms with account or campaign-level negatives (Google Ads Help).
Step 4: Review match types and negative keywords
Check which match types bring the irrelevant terms you found in Step 3. Broad match keywords can match much wider searches than the keyword suggests. Build a shared negative keyword list for job, education and free-tool terms, apply it to every campaign, and review it monthly. Competitor campaigns need their own negatives, as our guide to competitive paid search for B2B explains.
Step 5: Check structure and budget allocation
Split spend into brand, non-brand, competitor and Performance Max. Then check three things:
Brand share. If brand campaigns take more than half of the spend and conversions, the account is capturing demand you already had, not creating more.
Lost impression share. Campaigns limited by budget on your best-converting terms are the first place to move money to.
Auction insights. The auction insights report shows which competitors appear in your auctions and how often they rank above you.
Step 6: Review ads and landing pages
Quality Score reports three components: expected click-through rate, ad relevance and landing page experience (Google Ads Help). Look for keywords marked "below average" on any component, then check the match between search, ad and page. A search for "offline conversion tracking HubSpot" that lands on a generic homepage loses the buyer and raises your costs.
Step 7: Read the recommendations critically
Google's optimisation score runs from 0% to 100% and estimates how well the account is set up, weighted by the impact of Google's own recommendations. It does not factor into Quality Score or Ad Rank (Google Ads Help). Apply recommendations that fit your goals, such as fixing disapproved ads or budget limits on profitable campaigns. Dismiss the ones that broaden reach without a qualified-lead goal in place.
Step 8: Report on cost per opportunity
Finish by tying spend to the CRM. For each campaign, report cost, leads, qualified leads, opportunities and pipeline value, and calculate cost per opportunity. Expect the results to change the budget picture: a campaign with an expensive lead can still produce the cheapest opportunity.
Google Ads Audit Checklist for B2B
Area | Check | Healthy sign |
|---|---|---|
Conversions | Primary goal is a qualified lead or opportunity | Form fills and page views set as secondary |
Conversions | CRM stages imported into Google Ads | Opportunities visible per campaign |
Search terms | Top 100 terms by cost reviewed | Under 10% of spend on irrelevant terms |
Negatives | Shared list for jobs, education and free terms | Applied to every campaign, including Performance Max |
Match types | Broad match only with a qualified-lead goal | Search terms stay on topic |
Structure | Brand, non-brand and competitor separated | Budgets can be judged separately |
Budget | Lost impression share (budget) on best campaigns | Low on campaigns that produce opportunities |
Competition | Auction insights reviewed | Main rivals known and tracked |
Ads | Quality Score components checked | No "below average" on core keywords |
Landing pages | Message matches the search | One page per main intent |
Recommendations | Reviewed, not auto-applied | Applied only where they fit the goal |
Reporting | Cost per opportunity by campaign | Reported monthly to sales and marketing |
The "under 10%" threshold is a working rule of thumb, not a published benchmark. Set your own based on the first audit.
Paid Search Analytics in GA4: What the Channel Shows
GA4 groups Google Ads traffic from Search campaigns into the Paid Search channel. Performance Max, Demand Gen and Smart campaigns go to Cross-network instead (Google Analytics Help).
That split matters in an audit. If Performance Max takes a growing share of budget, the Paid Search channel in GA4 shrinks even when total Google Ads traffic is flat. Add Paid Search and Cross-network together before comparing periods, and use Google Ads and your CRM for conversion counts.
Common Paid Search Analysis Mistakes
Auditing clicks before conversions. If the conversion goal is wrong, every other finding is skewed.
Judging B2B on 30 days of data. Long sales cycles need at least a quarter, and opportunity data takes longer.
Counting brand conversions as growth. Brand campaigns mostly capture buyers who already know you.
Treating the optimisation score as a performance score. Google states it does not affect Quality Score or Ad Rank.
Reading GA4's Paid Search channel alone. Performance Max traffic sits in Cross-network.
When to Bring In Outside Help
An in-house audit works when someone owns the account and has time to act on the findings. If the account has no clear owner, or the audit shows the same faults as last quarter, outside help is usually cheaper than the wasted spend. Our guides on PPC management cost and the best B2B PPC agencies cover the options and what they charge.
Hey Sid's Google Search Ads service is a hands-on consultancy for B2B companies. It covers keyword research focused on commercial relevance, campaign structure by product, market and buyer intent, and ongoing management of ads, negative keywords and bidding. Search terms, conversions and costs are analysed continuously, and budget moves toward the campaigns that produce results.
Explore Google Search Ads: heysid.com/google-search-ads
Conclusion: Make Paid Search Analysis a Quarterly Habit
Paid search analysis for B2B comes down to one question: is Google Ads producing qualified opportunities at a cost the business accepts? Fix the conversion goal first, clean up search terms and negatives, move budget to the campaigns that create pipeline, and report on cost per opportunity. Repeat the checklist every quarter, and the account improves instead of drifting.
Book a demo: heysid.com/demo
FAQ
What is paid search analysis?
Paid search analysis is the review of search ad data, including search terms, structure, ads, landing pages and conversions, to find wasted spend and the campaigns that produce results. For B2B, it ends with cost per qualified opportunity.
How often should I audit Google Ads?
Run a full PPC audit every quarter and a lighter monthly review of search terms, budgets and conversions. Audit again whenever the account changes owner or performance drops sharply.
What does a paid search analyst do?
A paid search analyst reviews campaign data, finds wasted spend, tests changes to keywords, ads and bids, and reports results. In B2B, the role also connects ad data to CRM stages so campaigns are judged on pipeline.
Is a ROAS of 4 good for B2B?
ROAS is hard to use in B2B, because revenue arrives months after the click. Track cost per qualified opportunity and pipeline per dollar spent first, then compare closed revenue with spend once enough deals have closed.
What is a good conversion rate for B2B Google Ads?
WordStream's 2026 medians put Business Services at 4.85% and Industrial and Commercial at 8.20%. A B2B account that only counts qualified leads will sit lower, and that is expected.
Can I do a Google Ads audit myself?
Yes. The 8 steps and checklist in this guide need only Google Ads, GA4 and your CRM. The hardest part is usually connecting CRM stages back to Google Ads, which takes help from whoever runs your CRM.
